Danish Veterinary Laboratory

Summary

Organization: Danish Veterinary Laboratory
Country: Denmark

Top Publications

  1. ncbi Characterization of Mycoplasma hyosynoviae strains by amplified fragment length polymorphism analysis, pulsed-field gel electrophoresis and 16S ribosomal DNA sequencing
    B Kokotovic
    Danish Veterinary Laboratory, Copenhagen
    J Vet Med B Infect Dis Vet Public Health 49:245-52. 2002
  2. ncbi Recombination among multiple mitochondrial pseudogenes from a Passerine genus
    K Klitgaard Nielsen
    Danish Veterinary Laboratory, Bulowsvej 27, Copenhagen V, 1790, Denmark
    Mol Phylogenet Evol 18:362-9. 2001
  3. ncbi Serogroups and antimicrobial susceptibility among Escherichia coli isolated from farmed mink (Mustela vison Schreiber) in Denmark
    L Vulfson
    Danish Veterinary Laboratory, Hangøvej 2, DK 8200, Aarhus N, Denmark
    Vet Microbiol 79:143-53. 2001
  4. pmc Presence of variations in ribosomal protein L16 corresponding to susceptibility of enterococci to oligosaccharides (Avilamycin and evernimicin)
    F M Aarestrup
    Danish Veterinary Laboratory, DK 1790 Copenhagen V, Denmark
    Antimicrob Agents Chemother 44:3425-7. 2000
  5. pmc Extensive sequence divergence among bovine respiratory syncytial viruses isolated during recurrent outbreaks in closed herds
    L E Larsen
    Danish Veterinary Laboratory, DK 1790 Copenhagen V, Denmark
    J Clin Microbiol 38:4222-7. 2000
  6. pmc Evaluation of phenotypic and genotypic methods for subtyping Campylobacter jejuni isolates from humans, poultry, and cattle
    E M Nielsen
    Danish Veterinary Laboratory, 1790 Copenhagen, Denmark
    J Clin Microbiol 38:3800-10. 2000
  7. pmc Automated 5' nuclease PCR assay for identification of Salmonella enterica
    J Hoorfar
    Danish Veterinary Laboratory, Copenhagen, Denmark
    J Clin Microbiol 38:3429-35. 2000
  8. ncbi Prevalence of intestinal pathogens in Danish finishing pig herds
    H Stege
    Danish Veterinary Laboratory, Department of Pathology and Epidemiology, 27 Bülowsvej, DK 1790, Copenhagen V, Denmark
    Prev Vet Med 46:279-92. 2000
  9. ncbi Bovine respiratory syncytial virus (BRSV): a review
    L E Larsen
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Acta Vet Scand 41:1-24. 2000
  10. pmc Changes in bacterial community structure in the colon of pigs fed different experimental diets and after infection with Brachyspira hyodysenteriae
    T D Leser
    Danish Veterinary Laboratory, Copenhagen V, Denmark
    Appl Environ Microbiol 66:3290-6. 2000

Detail Information

Publications62

  1. ncbi Characterization of Mycoplasma hyosynoviae strains by amplified fragment length polymorphism analysis, pulsed-field gel electrophoresis and 16S ribosomal DNA sequencing
    B Kokotovic
    Danish Veterinary Laboratory, Copenhagen
    J Vet Med B Infect Dis Vet Public Health 49:245-52. 2002
    ..Ten field strains possessed the 16S rDNA sequences identical to the type strain, while the remaining six strains had sequences that differed by one to two nucleotides from that obtained from the type strain...
  2. ncbi Recombination among multiple mitochondrial pseudogenes from a Passerine genus
    K Klitgaard Nielsen
    Danish Veterinary Laboratory, Bulowsvej 27, Copenhagen V, 1790, Denmark
    Mol Phylogenet Evol 18:362-9. 2001
    ..The number of mitochondrial nuclear copies and their apparent frequent recombination suggest that pseudogenes constitute a serious potential risk in confounding phylogenetic studies and population genetic analysis...
  3. ncbi Serogroups and antimicrobial susceptibility among Escherichia coli isolated from farmed mink (Mustela vison Schreiber) in Denmark
    L Vulfson
    Danish Veterinary Laboratory, Hangøvej 2, DK 8200, Aarhus N, Denmark
    Vet Microbiol 79:143-53. 2001
    ..In conclusion, serogrouping and haemolysin testing failed to identify any association with diarrhoeal disease and antimicrobial resistance was highly variable between different mink farms...
  4. pmc Presence of variations in ribosomal protein L16 corresponding to susceptibility of enterococci to oligosaccharides (Avilamycin and evernimicin)
    F M Aarestrup
    Danish Veterinary Laboratory, DK 1790 Copenhagen V, Denmark
    Antimicrob Agents Chemother 44:3425-7. 2000
    ..faecium isolates. This study indicated that resistance to the oligosaccharides in enterococci is associated with variations in the ribosomal protein L16...
  5. pmc Extensive sequence divergence among bovine respiratory syncytial viruses isolated during recurrent outbreaks in closed herds
    L E Larsen
    Danish Veterinary Laboratory, DK 1790 Copenhagen V, Denmark
    J Clin Microbiol 38:4222-7. 2000
    ..These findings are highly relevant for the understanding of the transmission patterns of BRSV among calves and human respiratory syncytial virus among humans...
  6. pmc Evaluation of phenotypic and genotypic methods for subtyping Campylobacter jejuni isolates from humans, poultry, and cattle
    E M Nielsen
    Danish Veterinary Laboratory, 1790 Copenhagen, Denmark
    J Clin Microbiol 38:3800-10. 2000
    ..Furthermore, in two cases isolates from cattle and human patients were found to be identical according to all six methods...
  7. pmc Automated 5' nuclease PCR assay for identification of Salmonella enterica
    J Hoorfar
    Danish Veterinary Laboratory, Copenhagen, Denmark
    J Clin Microbiol 38:3429-35. 2000
    ..Thus, the diagnostic TaqMan assay developed can be a useful and simple alternative method for identification of Salmonella, particularly in large reference laboratories...
  8. ncbi Prevalence of intestinal pathogens in Danish finishing pig herds
    H Stege
    Danish Veterinary Laboratory, Department of Pathology and Epidemiology, 27 Bülowsvej, DK 1790, Copenhagen V, Denmark
    Prev Vet Med 46:279-92. 2000
    ..intracellularis and B. hyodysenteriae were 25-30%; the within-herd prevalences of the other agents were 5-10%. Three herds (4%) were not infected with any of the bacteria and 25 herds (32%) were only infected with L. intracellularis...
  9. ncbi Bovine respiratory syncytial virus (BRSV): a review
    L E Larsen
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Acta Vet Scand 41:1-24. 2000
    ....
  10. pmc Changes in bacterial community structure in the colon of pigs fed different experimental diets and after infection with Brachyspira hyodysenteriae
    T D Leser
    Danish Veterinary Laboratory, Copenhagen V, Denmark
    Appl Environ Microbiol 66:3290-6. 2000
    ..When the animals were experimentally infected with Brachyspira hyodysenteriae, causing swine dysentery, many of the T-RFs fluctuated, suggesting a destabilization of the microbial community...
  11. ncbi Listeria spp. in broiler flocks: recovery rates and species distribution investigated by conventional culture and the EiaFoss method
    L Petersen
    Danish Veterinary Laboratory, Aarhus
    Int J Food Microbiol 58:113-6. 2000
    ..inocua was also detected by the EiaFoss method, a significant amount of bacterial confirmation work had to be done. Of 42 samples analysed by conventional culture, four yielded L. inocua, of which two were not positive by EiaFoss...
  12. ncbi Efficacy of flagellin gene typing for epidemiological studies of Campylobacter jejuni in poultry estimated by comparison with macrorestriction profiling
    L Petersen
    Department of Poultry, Fish and Fur Animals and Department of Microbiology, Danish Veterinary Laboratory, Copenhagen, Denmark
    Lett Appl Microbiol 31:14-9. 2000
    ..It is concluded that PCR-Fla typing is useful as a genotyping tool in large-scale epidemiological studies but that additional analyses with other methods are required to properly define interstrain relationships...
  13. pmc Characterization of glycopeptide-resistant enterococcus faecium (GRE) from broilers and pigs in Denmark: genetic evidence that persistence of GRE in pig herds is associated with coselection by resistance to macrolides
    F M Aarestrup
    Danish Veterinary Laboratory, DK 1790 Copenhagen, Denmark
    J Clin Microbiol 38:2774-7. 2000
    ..The persistence of GRE in Danish pig herds after the ban of glycopeptides may be explained by the genetic link between ermB and vanA and coselection by use of macrolides for treatment and growth promotion...
  14. ncbi An Actinobacillus pleuropneumoniae PCR typing system based on the apx and omlA genes--evaluation of isolates from lungs and tonsils of pigs
    T Gram
    Danish Veterinary Laboratory, Bulowsvej 27, DK 1790, Copenhagen V, Denmark
    Vet Microbiol 75:43-57. 2000
    ..pleuropneumoniae isolates by simple PCR technique and enables phenotype independent characterization of isolates non-typable by serotyping...
  15. pmc Study of the infectivity of saline-stored Campylobacter jejuni for day-old chicks
    B Hald
    Danish Veterinary Laboratory, 2 Hangøvej, 8200 Aarhus N, Denmark
    Appl Environ Microbiol 67:2388-92. 2001
    ..Even high levels of maternally derived anti-campylobacter outer membrane protein serum antibodies in day-old chicks did not protect the chicks from campylobacter colonization...
  16. ncbi Phylogenetic characterisation of the G(L) sequences of equine arteritis virus isolated from semen of asymptomatic stallions and fatal cases of equine viral arteritis in Denmark
    L E Larsen
    Danish Veterinary Laboratory, Bulowsvej 27, DK 1790 V, Copenhagen, Denmark
    Vet Microbiol 80:339-46. 2001
    ..Our results reveal that the presence of EAV-shedding stallions in Denmark represents a potential source of severe EVA...
  17. ncbi Automated 5' nuclease assay for detection of virulence factors in porcine Escherichia coli
    K Frydendahl
    Danish Veterinary Laboratory, PP 2226, Bulowsvej 27, Copenhagen V, DK 1790, Denmark
    Mol Cell Probes 15:151-60. 2001
    ..In conclusion, the 5' nuclease assay developed is a fast and specific tool for detection of E. coli virulence genes in the veterinary diagnostic laboratory...
  18. ncbi Thermophilic Campylobacter spp. in turkey samples: evaluation of two automated enzyme immunoassays and conventional microbiological techniques
    B Borck
    Danish Veterinary Laboratory, Hangøvej 2, DK 8200 Aarhus N, Denmark
    J Appl Microbiol 92:574-82. 2002
    ..To determine the sensitivity and specificity of two automated enzyme immunoassays (EIA), EiaFoss and Minividas, and a conventional microbiological culture technique for detecting thermophilic Campylobacter spp. in turkey samples...
  19. ncbi Geographical variation in the presence of genes encoding superantigenic exotoxins and beta-hemolysin among Staphylococcus aureus isolated from bovine mastitis in Europe and USA
    H D Larsen
    Danish Veterinary Laboratory, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 85:61-7. 2002
    ..The consistent presence of beta-hemolysin suggests that this factor, or a co-existing gene correlated to beta-hemolysin, may be an active virulence factor in the pathogenesis of bovine S. aureus mastitis...
  20. ncbi No simple association between time elapsed from seroconversion until slaughter and the extent of lung lesions in Danish swine
    M Andreasen
    Danish Bacon and Meat Council, Veterinary and Food Advisory Service, Axelborg, Axeltorv 3, DK 1609 Copenhagen V, Denmark
    Prev Vet Med 52:147-61. 2001
    ..In these eight herds, recording of the extent of pathological lung lesions at slaughter at most yielded insight into the within-herd epidemiologic dynamics of M. hyopneumoniae -- and not to any of the serotypes of A. pleuropneumoniae...
  21. pmc Salmonella dublin in Danish dairy herds: frequency of change to positive serological status in bulk tank milk ELISA in relation to serostatus of neighbouring farms
    A Wedderkopp
    Cattle Health Laboratory, Danish Dairy Board, Brørup, Denmark
    Acta Vet Scand 42:295-301. 2001
    ..The results indicate that the risk for a dairy herd to receive S. dublin infection increases with the disease status among the nearest neighbours and with the prevalence of seropositive herds in the geographic area...
  22. ncbi Comparative ribotyping of Staphylococcus intermedius isolated from members of the Canoidea gives possible evidence for host-specificity and co-evolution of bacteria and hosts
    F M Aarestrup
    Danish Veterinary Laboratory, Copenhagen
    Int J Syst Evol Microbiol 51:1343-7. 2001
    ..These ribotype data indicate host-specificity of different types of S. intermedius and suggest co-evolution between the animal hosts within the Canoidea and S. intermedius...
  23. ncbi Antimicrobial resistance among Pseudomonas spp. and the Bacillus cereus group isolated from Danish agricultural soil
    L B Jensen
    Danish Veterinary Laboratory, Copenhagen
    Environ Int 26:581-7. 2001
    ..cereus group. Variations in resistance levels were observed when soil before and after spread of animal waste was compared, indicating an effect from spread of animal waste...
  24. ncbi A retrospective analysis of the infectious bovine rhinotracheitis (bovine herpes virus-1) surveillance program in Norway using Monte Carlo simulation models
    L G Paisley
    National Veterinary Institute, Ullevålsveien 68, Postboks 8156 Dep, N 0033, Oslo, Norway
    Prev Vet Med 50:109-25. 2001
    ..This paper describes the use of Monte Carlo simulation models for the analysis and interpretation of the results of the surveillance and provides support for the contention that the Norwegian cattle population is not infected by BHV-1...
  25. ncbi The effect of discontinuing the use of antimicrobial growth promoters on the productivity in the Danish broiler production
    H Emborg
    Danish Veterinary Laboratory, Bulowsvej 27, DK 1790, Copenhagen V, Denmark
    Prev Vet Med 50:53-70. 2001
    ..However, the feed-conversion ratio increased marginally 0.016 kg/kg and has remained at this level throughout the rest of the study period...
  26. ncbi Antimicrobial resistance of thermophilic Campylobacter
    F M Aarestrup
    Danish Veterinary Laboratory, Copenhagen
    Vet Res 32:311-21. 2001
    ..However, resistance genes originating from both Gram-positive and Gram-negative bacterial species have been found, showing the potential for acquired resistance to emerge in Campylobacter...
  27. pmc Effect of abolishment of the use of antimicrobial agents for growth promotion on occurrence of antimicrobial resistance in fecal enterococci from food animals in Denmark
    F M Aarestrup
    Danish Veterinary Laboratory, DK 1790 Copenhagen V, Denmark
    Antimicrob Agents Chemother 45:2054-9. 2001
    ..Cases in which resistance to vancomycin was linked to resistance to erythromycin were exceptions. In such cases resistance did not decrease until the use of both avoparcin and tylosin was limited...
  28. ncbi Passive immunization of pigs against experimental infection with Streptococcus suis serotype 2
    L O Andresen
    Danish Veterinary Laboratory, Bulowsvej 27, DK 1790 V, Copenhagen, Denmark
    Vet Microbiol 81:331-44. 2001
    ..These results indicate that passive immunization of pigs may be a way to reduce or control S. suis serotype 2 infections in pigs...
  29. ncbi Survival of Brachyspira hyodysenteriae and B. pilosicoli in terrestrial microcosms
    M Boye
    Danish Veterinary Laboratory, Bulowsvej 27, DK 1790 V, Copenhagen, Denmark
    Vet Microbiol 81:33-40. 2001
    ..These results show that the two Brachyspira species may survive in outdoor environment for the times shown in these investigations using laboratory microcosms...
  30. ncbi Application of fluorescent in situ hybridization for specific diagnosis of Pneumocystis carinii pneumonia in foals and pigs
    T K Jensen
    Danish Veterinary Laboratory, DK 1790 Copenhagen V
    Vet Pathol 38:269-74. 2001
    ..The results show that fluorescent in situ hybridization targeting ribosomal RNA can provide a specific diagnosis of P. carinii pneumonia in foals and pigs...
  31. ncbi Comparison of antimicrobial resistance phenotypes and resistance genes in Enterococcus faecalis and Enterococcus faecium from humans in the community, broilers, and pigs in Denmark
    F M Aarestrup
    Danish Veterinary Laboratory, 27 Bülowsvej, DK 1790 V, Copenhagen, Denmark
    Diagn Microbiol Infect Dis 37:127-37. 2000
    ..However, similar resistance patterns and resistance genes were detected frequently indicating that transmission of resistant enterococci or resistance genes takes place between humans, broilers, and pigs...
  32. ncbi A longitudinal study of serological patterns of respiratory infections in nine infected Danish swine herds
    M Andreasen
    Danish Bacon and Meat Council, Veterinary and Food Advisory Service, Axelborg, Copenhagen, Denmark
    Prev Vet Med 45:221-35. 2000
    ..None, four and seven herds tested seropositive to PRRS and to swine influenza virus subtypes H3N2 and H1N1, respectively, when testing 10 pigs per herd (selected randomly among the study pigs) at the age of 20 weeks...
  33. ncbi Monoclonal antibodies to Toxoplasma gondii strain 119 identify recently isolated Danish strains as one group
    L Jensen
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Int J Parasitol 28:1305-13. 1998
    ..Using the mAb as typing reagents to this Danish strain collection, all 36 animal and two human strains were identified as having the same reaction pattern as strains 119, NTE and 561...
  34. ncbi In vitro genotypic variation of Campylobacter coli documented by pulsed-field gel electrophoretic DNA profiling: implications for epidemiological studies
    S L On
    Danish Veterinary Laboratory, Copenhagen V, Denmark
    FEMS Microbiol Lett 165:341-6. 1998
    ..The effect of spontaneous genetic change on PFGE profiles must be considered when evaluating strain relationships. Numerical techniques may aid data interpretation but results must be evaluated cautiously...
  35. ncbi The porcine acute phase response to infection with Actinobacillus pleuropneumoniae. Haptoglobin, C-reactive protein, major acute phase protein and serum amyloid A protein are sensitive indicators of infection
    P M Heegaard
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Comp Biochem Physiol B Biochem Mol Biol 119:365-73. 1998
    ..These findings indicate the possibility of using one or more of these reactants for the nonspecific surveillance of pig health status...
  36. ncbi Differentiation and distribution of three types of exfoliative toxin produced by Staphylococcus hyicus from pigs with exudative epidermitis
    L O Andresen
    Department of Microbiology, Danish Veterinary Laboratory, Copenhagen V
    FEMS Immunol Med Microbiol 20:301-10. 1998
    ..In this study two new antigenically distinct exfoliative toxins were isolated and tools for in vitro detection of toxin producing S. hyicus isolates and for further studies on the exfoliative toxins from S. hyicus have been provided...
  37. ncbi Serological characterization and antimicrobial susceptibility of Streptococcus suis isolates from diagnostic samples in Denmark during 1995 and 1996
    F M Aarestrup
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Vet Microbiol 60:59-66. 1998
    At the Danish Veterinary Laboratory Streptococcus suis infections in pigs were diagnosed in 114 cases in 1995 and in 151 cases in 1996...
  38. ncbi Emended description of Campylobacter sputorum and revision of its infrasubspecific (biovar) divisions, including C. sputorum biovar paraureolyticus, a urease-producing variant from cattle and humans
    S L On
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Int J Syst Bacteriol 48:195-206. 1998
    ..paraureolyticus for urease-positive strains. Strains classified previously as bv. bubulus should be reclassified as bv. sputorum. The species description of C. sputorum is revised accordingly...
  39. ncbi Determination of clonal relationships of Salmonella typhimurium by numerical analysis of macrorestriction profiles
    S L On
    Danish Veterinary Laboratory, Copenhagen, Denmark
    J Appl Microbiol 83:699-706. 1997
    ..typhimurium strains and has practical applications for both short- and long-term epidermiological surveillance purposes...
  40. ncbi A study of phage- and ribotype patterns of Staphylococcus aureus isolated from bovine mastitis in the Nordic countries
    F M Aarestrup
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Acta Vet Scand 38:243-52. 1997
    ..This could suggest differences in the virulence or in modes of transmission of predominating and rare types of S. aureus associated with bovine mastitis...
  41. ncbi Use of an agar-gel technique for large scale application to recover Ascaris suum larvae from intestinal contents of pigs
    H C Slotved
    Danish Centre for Experimental Parasitology, Royal Veterinary and Agricultural University, Frederiksberg, Denmark
    Acta Vet Scand 38:207-12. 1997
    ..The variation in the time interval from slaughtering to start of incubation (interval 57-155 min) did not significantly affect the recovery percentage...
  42. ncbi Comparison of methods for recovery of Ascaris suum larvae from tissues of mice
    H C Slotved
    Danish Centre for Experimental Parasitology, Royal Veterinary and Agricultural University, Frederiksberg, Copenhagen, Denmark
    Int J Parasitol 27:1305-10. 1997
    ..The methods presented in this study may be useful for investigation of the histology, morphology and molecular biology of the early of A. suum...
  43. pmc Healthy puppies and kittens as carriers of Campylobacter spp., with special reference to Campylobacter upsaliensis
    B Hald
    Danish Veterinary Laboratory, Aarhus N
    J Clin Microbiol 35:3351-2. 1997
    ..upsaliensis. We concluded that young puppies and kittens are potential transmitters of human-pathogenic Campylobacter spp., including C. upsaliensis, while poultry seems negligible in C. upsaliensis epidemiology...
  44. ncbi Distribution of serotypes of Campylobacter jejuni and C. coli from Danish patients, poultry, cattle and swine
    E M Nielsen
    Department of Microbiology, Danish Veterinary Laboratory, Copenhagen, Denmark
    FEMS Immunol Med Microbiol 19:47-56. 1997
    ..The serotype distribution of human clinical isolates showed large overlap with the serotype distribution of campylobacters in cattle and chickens, and on this basis both could be major sources of human campylobacteriosis...
  45. ncbi Avoparcin used as a growth promoter is associated with the occurrence of vancomycin-resistant Enterococcus faecium on Danish poultry and pig farms
    F Bager
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Prev Vet Med 31:95-112. 1997
    ....
  46. pmc Characterization of intramolecular disulfide bonds and secondary modifications of the glycoprotein from viral hemorrhagic septicemia virus, a fish rhabdovirus
    K Einer-Jensen
    Danish Veterinary Laboratory, DK 8200 Aarhus N, Denmark
    J Virol 72:10189-96. 1998
    ..This finding suggests that there might be some common disulfide bonding pattern among the six rhabdoviruses...
  47. ncbi Internal size variations in Tn1546-like elements due to the presence of IS1216V
    L B Jensen
    Danish Veterinary Laboratory, Copenhagen V, Denmark
    FEMS Microbiol Lett 169:349-54. 1998
    ..Integration of the IS1216V element created both deletions and a duplication in a non-essential region of Tn1546. In several isolates, the entire vanY gene was deleted, proving that this gene is non-essential for vancomycin resistance...
  48. ncbi In situ hybridization for the detection of infectious laryngotracheitis virus in sections of trachea from experimentally infected chickens
    O L Nielsen
    Danish Veterinary Laboratory, Aarhus, Denmark
    Acta Vet Scand 39:415-21. 1998
    ..i. No hybridization was observed in 3 out of 3 chickens examined on day 10 p.i. ILTV nucleic acid was detected in nuclei of degenerated tracheal epithelial cells and in intranuclear inclusion bodies of syncytia...
  49. ncbi Aerosol challenge of calves with Haemophilus somnus and Mycoplasma dispar
    C Tegtmeier
    Danish Veterinary Laboratory, Bulowsvej 27, DK 1790, Copenhagen, Denmark
    Vet Microbiol 72:229-39. 2000
    ..somnus indicated a clear systemic response, probably as a consequence of the natural non-specific local and systemic defence mechanisms acting in healthy calves...
  50. ncbi Vibrios associated with mortality in cultured plaice Pleuronectes platessa fry
    K Pedersen
    Department of Veterinary Microbiology, Royal Veterinary and Agricultural University, Frederiksberg, Denmark
    Acta Vet Scand 40:263-70. 1999
    ..However, virulence seemed to deteriorate upon subculturing, and therefore, the strains may have been more virulent upon primary isolation from the plaice fry...
  51. ncbi Effect of aerial ammonia on porcine infection of the respiratory tract with toxigenic Pasteurella multocida
    M Andreasen
    Danish Bacon and Meat Council, Veterinary Division, Axelborg, Copenhagen, Denmark
    Acta Vet Scand 40:197-203. 1999
    ..In conclusion the results from this study suggest that ammonia in concentrations of 50 ppm is unlikely to predispose growing pigs to pulmonary infection with toxigenic P. multocida...
  52. ncbi Comparison of the IFAT and Iscom-ELISA response in bovine foetuses with Neospora caninum infection
    H C Slotved
    Department of Biochemistry and Immunology, Copenhagen, Denmark
    Int J Parasitol 29:1165-74. 1999
    ..5 months. The Iscom-ELISA also showed promising results as a method for screening specific antibodies against N. caninum in foetal fluid...
  53. ncbi Isolation of viral haemorrhagic septicaemia virus (VHSV) from wild marine fish species in the Baltic Sea, Kattegat, Skagerrak and the North Sea
    H F Mortensen
    Danish Veterinary Laboratory, Department of Poultry, Fish and Fur Animals, Arhus
    Virus Res 63:95-106. 1999
    ....
  54. ncbi Induction of arthritis with Mycoplasma hyosynoviae in pigs: clinical response and re-isolation of the organism from body fluids and organs
    T Hagedorn-Olsen
    Department of Clinical Studies, Royal Veterinary and Agricultural University, Copenhagen, Denmark
    Zentralbl Veterinarmed A 46:317-25. 1999
    ....
  55. ncbi Evaluation of culture methods for rapid screening of swine faecal samples for Yersinia enterocolitica O:3/biotype 4
    J Hoorfar
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Zentralbl Veterinarmed B 46:189-98. 1999
    ..12%). The results indicate possibilities of shortening the culture methods by replacing most of the biochemical tests with an agglutination test based on a monoclonal antibody...
  56. ncbi Studies on the effect of divalent metal ions on exfoliative toxins from Staphylococcus hyicus: indications of ExhA and ExhB being metalloproteins
    L O Andresen
    Department of Microbiology, Danish Veterinary Laboratory, Copenhagen
    FEMS Immunol Med Microbiol 23:295-301. 1999
    ..The results of this study suggest that ExhA and ExhB are metalloproteins...
  57. ncbi Interaction between Salmonella typhimurium and phagocytic cells in pigs. Phagocytosis, oxidative burst and killing in polymorphonuclear leukocytes and monocytes
    U Riber
    Danish Veterinary Laboratory, Copenhagen
    Vet Immunol Immunopathol 67:259-70. 1999
    ....
  58. ncbi Serotypes and typability of Campylobacter jejuni and Campylobacter coli isolated from poultry products
    E M Nielsen
    Danish Veterinary Laboratory, Copenhagen
    Int J Food Microbiol 46:199-205. 1999
    ..Subculturing and re-typing of the nontypable isolates improved the typability. After two, five and 10 subcultures 16, six and one isolate became typable, respectively. Only three isolates (2%) remained nontypable after 10 subcultures...
  59. ncbi A PCR-based strategy for simple and rapid identification of rough presumptive Salmonella isolates
    J Hoorfar
    Danish Veterinary Laboratory, Copenhagen, Denmark
    J Microbiol Methods 35:77-84. 1999
    ..The system can be easily implemented in accredited laboratories with limited experience in molecular biology...
  60. ncbi Susceptibility testing of Actinobacillus pleuropneumoniae in Denmark. Evaluation of three different media of MIC-determinations and tablet diffusion tests
    F M Aarestrup
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Vet Microbiol 64:299-305. 1999
    ..A larger number of isolates tested resistant to spectinomycin and tylosin on all three media using both MIC determinations and tablet diffusion...
  61. ncbi Taxonomic relationships of the [Pasteurella] haemolytica complex as evaluated by DNA-DNA hybridizations and 16S rRNA sequencing with proposal of Mannheimia haemolytica gen. nov., comb. nov., Mannheimia granulomatis comb. nov., Mannheimia glucosida sp. nov
    O Angen
    Department of Veterinary Microbiology, Royal Veterinary and Agricultural University, Frederiksberg, Denmark
    Int J Syst Bacteriol 49:67-86. 1999
    ..The type strains are NCTC 9380T (M. haemolytica), ATCC 49244T (M. granulomatis), CCUG 38457T = P925T (M. glucosida), CCUG 38470T = HPA92T (M. ruminalis) and CCUG 38462T = 177T (M. varigena)...
  62. ncbi Evaluation of a PCR for detection of Actinobacillus pleuropneumoniae in mixed bacterial cultures from tonsils
    T Gram
    Danish Veterinary Laboratory, Copenhagen, Denmark
    Vet Microbiol 51:95-104. 1996
    ..pleuropneumoniae-negative herd did not react in the PCR. The results show that PCR on mixed bacterial cultures from tonsils may be a highly sensitive method for the detection of A. pleuropneumoniae in pig herds...